Vertical axis type wind power station

Abstract

A vertical axis type wind power station and a blade manufacturing process, which can stabilize the turning motions of blades and can raise the power generation efficiency by lightening the blades to smoothen the turning motions of the blades; a structure and method for mounting the wind-driven device of a wind power station, by which the wind-driven device can be easily disposed at the upper portion of a building; and a windbreak wind power plant for breaking the wind by using the vertical axis type wind power stations or wind-driven devices arranged along the shoreline or the like.

1. A vertical axis type wind power station comprising:
 a rotating post disposed upright; and 
 a plurality of longitudinal blades attached in the circumferential direction to said rotating post, 
 wherein said blades include main supporting members longitudinal of said blades, a multiplicity of wings-like boards inserted and fixed on said main supporting members, and contouring sheets applied around said wings-like boards, and 
 wherein said wings-like boards have projections formed on their peripheries that extend through said contouring sheets. 
 
     
     
       2. A vertical axis type wind power station as set forth in  claim 1 ,
 wherein said main supporting members, said wings-like boards and said contouring sheets are made of an aluminum alloy. 
 
     
     
       3. A vertical axis type wind power station as set forth in  claim 1 ,
 wherein said main supporting members have a polygonal section, one side of which is parallel to the chord length. 
 
     
     
       4. A vertical axis type wind power station as set forth in  claim 3 , further comprising a plate-shaped mounting bracket having a horizontal parallel face and attached to said main supporting member,
 wherein a portion of said mounting bracket is accommodated in a space surrounded with said contouring sheet, 
 another portion of said mounting bracket extends through and projects from said contouring sheet toward the side of said rotating post, and 
 said mounting bracket has a side formed at least in its portion on said projecting portion and arranged in parallel with the chord length. 
 
     
     
       5. A vertical axis type wind power station as set forth in  claim 4 , further comprising:
 support members mounted on said rotating post and configured to support said blades, 
 wherein said support member and said projecting portion of said bracket are jointed at at least two points and positioned at at least one point between said at least two jointed points. 
 
     
     
       6. A vertical axis type wind power station comprising:
 a rotating post disposed upright; and 
 a plurality of longitudinal blades attached in the circumferential direction to said rotating post as set forth in  claim 1 , 
 wherein said blades include horizontal straightening plates. 
 
     
     
       7. A vertical axis type wind power station as set forth in  claim 6 ,
 wherein said straightening plates have a section similarly enlarged from the contour of the horizontal section of said blades. 
 
     
     
       8. A vertical axis type wind power station as set forth in  claim 7 ,
 wherein said straightening plates are so obliquely attached to said blades as to generate a lift at said rotating post. 
 
     
     
       9. A vertical axis type wind power station as set forth in  claim 6 ,
 wherein said straightening plates are so obliquely attached to said blades as to generate a lift at said rotating post. 
 
     
     
       10. A vertical axis type wind power station comprising:
 a rotating post disposed upright; and 
 a plurality of longitudinal blades attached in the circumferential direction to said rotating post, 
 wherein said blades include main supporting members longitudinal of said blades, a multiplicity of wings-like boards inserted and fixed on said main supporting members, and contouring sheets applied around said wings-like boards, 
 wherein said wings-like boards have folded seats for placing said contouring sheets. 
 
     
     
       11. A vertical axis type wind power station as set forth in  claim 10 ,
 wherein said main supporting members have a polygonal section, one side of which is parallel to the chord length. 
 
     
     
       12. A vertical axis type wind power station as set forth in  claim 11 , further comprising:
 a plate-shaped mounting bracket having a horizontal parallel face and attached to said main supporting member, 
 wherein a portion of said mounting bracket is accommodated in a space surrounded with said contouring sheet, 
 other portion of said mounting bracket extends through and projects from said contouring sheet toward the side of said rotating post, and 
 said mounting bracket has a side formed at least in its portion said projecting portion and arranged in parallel with the chord length. 
 
     
     
       13. A vertical axis type wind power station as set forth in  claim 12 , further comprising:
 support members mounted on said rotating post and configured to support said blades, 
 wherein said support member and said projecting portion of said bracket are jointed at at least two points and positioned at at least one point. 
 
     
     
       14. A vertical type wind power station as set forth in  claim 10 ,
 wherein said main supporting members, said wings-like boards and said contouring sheets are made of an aluminum alloy. 
 
     
     
       15. A vertical axis type wind power station comprising:
 a rotating post disposed upright; and 
 a plurality of longitudinal blades attached in the circumferential direction to said rotating post, 
 wherein said rotating post is provided with transversely upward upper support members and transversely downward lower support members, 
 said blades are attached at their longitudinally upper and lower portions to the leading ends of said upper support members and said lower support members, and 
 each of said upper support member and said lower support member is generally formed from a plate-shaped member into an angle section that has a smaller modulus of section toward the leading end. 
 
     
     
       16. A vertical axis type wind power station as set forth in  claim 15 ,
 wherein said upper support member and said lower support member have substantial triangle sections. 
 
     
     
       17. A vertical axis type wind power station comprising:
 a rotating post disposed upright; 
 a plurality of longitudinal blades arranged in the circumferential direction of said rotating post; 
 a rotor mounted on the leading end of said rotating post so that the position of the leading end of said rotating post is at the center of gravity of said vertical axis type wind power station; 
 two upper and lower arms attached obliquely downward or upward to said rotor and configured to support the two longitudinally upper and lower portions of the blade; and 
 two intermediate arms attached to said rotors in vertical symmetry with respect to a center of gravity of said rotors and configured to support the two intermediate portions between a longitudinal center and each of the two upper and lower portions of said blade. 
 
     
     
       18. A vertical axis type wind power station as set forth in  claim 17 ,
 wherein if: the longitudinal length of said blade is designated by c; the distance from the upper and lower ends of said blade to the supporting points of said two upper and lower portions is designated by a; and the distance from the supporting points of said two upper and lower supporting portions to said two intermediate portions is designated by b, the supporting points of said two upper and lower portions are positioned within a range of a/c=0.02 to 0.16, and the supporting points of said two intermediate portions are positioned within a range of b/c=0.18 to 0.37. 
 
     
     
       19. A vertical axis type wind power station as set forth in  claim 18 ,
 wherein said two upper and lower arms and said two intermediate arms are formed of hollow arms having hollow sections. 
 
     
     
       20. A vertical axis type wind power station as set forth in  claim 18 ,
 wherein said two upper and lower arms and said two intermediate arms are formed into a shape having a transversely flattened section. 
 
     
     
       21. A vertical axis type wind power station as set forth in  claim 18 ,
 wherein said rotor used is a tube-shaped rotor, and wherein said upper and lower arms are attached to the upper and lower ends of said rotor. 
 
     
     
       22. A vertical axis type wind power station as set forth in  claim 17 ,
 wherein said rotor used is a tube-shaped rotor, and wherein said upper and lower arms are attached to the upper and lower ends of said rotor. 
 
     
     
       23. A vertical axis type wind power station comprising:
 a rotating post disposed upright; 
 a plurality of longitudinal blades attached in the circumferential direction to said rotating post; 
 a tube-shaped member arranging said rotating post therein; 
 a radial bearing arranged at the upper portion or the intermediate portion in said tube-shaped member and configured to support said rotating post rotatably; 
 a thrust bearing arranged at the lower portion in said tube-shaped member and configured to support said rotating post rotatably; and 
 a bearing disposed near said thrust bearing in the inner wall of said tube-shaped member at a clearance from said rotating post, 
 wherein said rotating post contacts, when it is transversely rocked, with the bearing disposed in the inner wall of said tube-shaped member. 
 
     
     
       24. A vertical axis type wind power station comprising:
 a rotating post disposed upright by at least two bearings; 
 a plurality of longitudinal blades attached in the circumferential direction to said rotating post; and 
 an electric brush between said at least two bearings which is earthed to the ground to leak the electricity from said rotating post. 
 
     
     
       25. A vertical axis type wind power station comprising:
 a rotating post disposed upright; 
 a plurality of longitudinal blades attached in the circumferential direction to said rotating post; 
 a tube-shaped rotor arranged concentrically of the center axis of said rotating post and in the vicinity of the upper portion of said rotating post; 
 a plate-shaped member disposed to have a horizontal flat face in said tube-shaped rotor; and 
 a bearing configured to support said rotating post rotatably, 
 wherein said tube-shaped rotor is connected to said rotating post through said plate-shaped member in the vicinity of the vertical center in said tube-shaped rotor, and 
 wherein said bearing is arranged near just below said connected position. 
 
     
     
       26. A vertical axis type wind power station as set forth in  claim 25 ,
 wherein said plate-shaped member is positioned at the vertical center position of said tube-shaped rotor. 
 
     
     
       27. A vertical axis type wind power station as set forth in  claim 25 ,
 wherein said bearing is arranged at the vertical center position of said tube-shaped rotor. 
 
     
     
       28. A vertical axis type wind power station comprising:
 a rotating post disposed upright; 
 a plurality of longitudinal blades arranged in the circumferential direction of said rotating post; 
 a rotor mounted on the leading end of said rotating post so that the position of the leading end of said rotating post is at the center of gravity of said vertical axis type wind power station; 
 two upper and lower arms attached obliquely downward or upward to said rotor and configured to support the two longitudinally upper and lower portions of the blade; and 
 two intermediate arms attached to said upper and lower arms in vertical symmetry with respect to the center of gravity of said upper and lower arms, and configured to support the two intermediate portions between a longitudinal center and each of the two upper and lower portions of said blade. 
 
     
     
       29. A vertical axis type wind power station as set forth in  claim 28 ,
 wherein if: the longitudinal length of said blade is designated by c; the distance from the upper and lower ends of said blade to the supporting points of said two upper and lower portions is designated by a; and the distance from the supporting points of said two upper and lower supporting portions to said two intermediate portions is designated by b, the supporting points of said two upper and lower portions are positioned within a range of a/c=−0.02 to 0.16, and the supporting points of said two intermediate portions are positioned within a range of b/c=0.18 to 0.37. 
 
     
     
       30. A vertical axis type wind power station as set forth in  claim 29 ,
 wherein said two upper and lower arms and said two intermediate arms are formed of hollow arms having hollow sections. 
 
     
     
       31. A vertical axis type wind power station as set forth in  claim 29 ,
 wherein said two upper and lower arms and said two intermediate arms are formed into a shape having a transversely flattened section. 
 
     
     
       32. A vertical axis type wind power station as set forth in  claim 28 ,
 wherein said rotor used is a tube-shaped rotor, and wherein said upper and lower arms are attached to the upper and lower ends of said rotor. 
 
     
     
       33. A vertical axis type wind power station comprising:
 a rotating post disposed upright by at least two bearings; 
 an outer tube supporting said at least two bearings; 
 a plurality of longitudinal blades attached in the circumferential direction to said rotating post; and 
 an insulating member sandwiched between said at least two bearings and the outer tube of the at least two bearings supporting said rotating post. 
 
     
     
       34. A vertical axis type wind power station comprising:
 a rotating post disposed upright; 
 a plurality of longitudinal blades attached in the circumferential direction said rotating post; 
 a tube-shaped rotor arranged concentrically of the center axis of said rotating post and in the vicinity of the upper portion of said rotating post; 
 an intervening member disposed in aid tube-shaped rotor; and 
 a bearing configured to support said rotating post rotatably, 
 wherein said tube-shaped rotor is connected to said rotating post through said intervening member in the vicinity of the vertical center in said tube-shaped rotor, and 
 wherein said bearing is arranged near just below said connected position. 
 
     
     
       35. A vertical axis type wind power station as set forth in  claim 34 ,
 wherein said intervening member is positioned at the vertical center position of said tube-shaped rotor. 
 
     
     
       36. A vertical axis type wind power station as set forth in  claim 34 ,
 wherein said bearing is arranged at the vertical center position of said tube-shaped rotor. 
 
     
     
       37. A vertical axis type wind power station comprising:
 a rotating post disposed upright in a tube; 
 a plurality of longitudinal blades attached in the circumferential direction to said rotating post; 
 a radial ball bearing arranged between an inner wall of said tube and said rotating post and configured to support said rotating post rotatably and bear a load perpendicular to an axis of rotation; 
 a thrust ball bearing arranged between the inner wall of said tube and said rotating post and configured to bear a load on an axis of rotation; and 
 a touchdown ball bearing arranged between the inner wall of said tube and said rotating post and having a clearance from either the inner wall of said tube or said rotating post and configured to bear a load perpendicular to the axis of rotation. 
 
     
     
       38. A vertical axis type wind power station comprising:
 a rotating post disposed upright in a tube; 
 a plurality of longitudinal blades attached in the circumferential direction to said rotating post; 
 a bearing arranged between an inner wall of said tube and said rotating post and configured to bear a load whenever said rotating post rocks perpendicularly to the axis of rotation; 
 a bearing arranged between the inner wall of said tube and said rotating post and configured to bear a load perpendicular to the axis of rotation; and 
 a bearing arranged between the inner wall of said tube and said rotating post for bearing a load temporarily only when said rotating post rocks perpendicularly to the axis of rotation.